Thanks, Stap, that brought back some happy memories.

I used to go mountain biking with a group of guys every Saturday morning no matter what. One of the good things is that, when it gets icy like that, it means that it's cold so you're wearing a lot of layers and you have a lot of padding when (not if) you hit the ground. I used to wonder at how quickly I could go from vertical to horizontal when I found some ice. We used to ride early in the morning and try to get out of the woods before the temperature rose, took the frost out of the ground, and made it muddy.